[s-cars] RE: No Start 92 S-4 after dead battery was charged

[AW]

Thanks to all who responded about the trouble starting my '92 S4.  With end of the year stuff at work plus the holiday, I didn't get a chance to check the car until this past weekend.  After reading through the various messages, I decided to check the battery again.  The water levels were fine and the battery charger would read a successful charging, but I got a car battery tester from a relative and checked out the Audi brand battery.  The rating was 650 CCA, but the tester showed 154 CCA.  I installed a new Audi battery last night and the car started right up.  

As a side note, the warranty on the old battery had just expired a couple of days before the car wouldn't start.  Talk about planned obsolescence!

Now the only issue is that when I start the car, the air bag light comes on.  The first couple of times last night, it stayed on for about 10 minutes.  This morning, it stayed on for about 5 minutes, until the car had warmed up.  Anything to be very concerned about?  

TIA for any help.

Andy